It all began on a clear night in 1610 AD. Galileo Galilei caught glimpses of four bodies that would later bear his name—the Galilean Moons. Because Jupiter's largest satellites were so bright, Galileo called ...

An analysis of gravity and topography data from Saturn's largest moon, Titan, has revealed unexpected features of the moon's outer ice shell. The best explanation for the findings, the authors said, is that ...

Neptune's largest moon Triton is most likely a captured Kuiper Belt Object. The capture of icy Triton and the subsequent taming of its orbit likely led to the formation of a subsurface ocean through tidal ...

As Shell Alaska's effort to begin exploratory offshore drilling in the Arctic Ocean runs up against a weather-related deadline in the Chukchi Sea, the company has asked to extend its drilling window there.

In a significant finding in the search for life beyond Earth, scientists from The University of Texas at Austin and elsewhere have discovered what appears to be a body of liquid water the volume of the North ...

NASA and the European Space Agency are sending a mission to study Jupiter and its moon Europa in 2020. There may be life in the moon’s ocean, but to find out a mission will have to be able to drill down ...